retain binding sourcemaps to the extent possible

pull/432/head
Rich-Harris 8 years ago
parent 92e4b7f813
commit cf626ff880

@ -1,5 +1,7 @@
export default function flatten ( node ) {
const parts = [];
const propEnd = node.end;
while ( node.type === 'MemberExpression' ) {
if ( node.computed ) return null;
parts.unshift( node.property.name );
@ -7,10 +9,11 @@ export default function flatten ( node ) {
node = node.object;
}
const propStart = node.end;
const name = node.type === 'Identifier' ? node.name : node.type === 'ThisExpression' ? 'this' : null;
if ( !name ) return null;
parts.unshift( name );
return { name, parts, keypath: parts.join( '.' ) };
return { name, parts, keypath: `${name}[✂${propStart}-${propEnd}✂]` };
}

@ -1,10 +1,10 @@
export function test ({ assert, smc, locateInSource, locateInGenerated }) {
const expected = locateInSource( 'foo.bar.baz' );
const expected = locateInSource( 'bar.baz' );
let loc;
let actual;
loc = locateInGenerated( 'foo.bar.baz' );
loc = locateInGenerated( 'bar.baz' );
actual = smc.originalPositionFor({
line: loc.line + 1,
@ -18,7 +18,7 @@ export function test ({ assert, smc, locateInSource, locateInGenerated }) {
column: expected.column
});
loc = locateInGenerated( 'foo.bar.baz', loc.character + 1 );
loc = locateInGenerated( 'bar.baz', loc.character + 1 );
actual = smc.originalPositionFor({
line: loc.line + 1,

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